36 citations · 140 across the 10 of their papers we have counts for
5 papers · 1 filter
Cosmic Acceleration and Extra Dimensions
Varun Sahni, Yuri Shtanov
Brane cosmology presents many interesting possibilities including: phantom acceleration (w<-1), self-acceleration, unification of dark energy with inflation, transient acceleration…
Boiling of nuclear liquid in core-collapse supernova explosions
Peter Fomin, Dmytro Iakubovskyi, Yuri Shtanov
We investigate the possibility of boiling instability of nuclear liquid in the inner core of the proto-neutron star formed in the core collapse of a type II supernova. We derive a…
Gravitational instability on the brane: the role of boundary conditions
Yuri Shtanov, Alexander Viznyuk, Varun Sahni
An outstanding issue in braneworld theory concerns the setting up of proper boundary conditions for the brane-bulk system. Boundary conditions (BC's) employing regulatory branes or…
Cosmic Mimicry: Is LCDM a Braneworld in Disguise ?
Varun Sahni, Yuri Shtanov, Alexander Viznyuk
For a broad range of parameter values, braneworld models display a remarkable property which we call cosmic mimicry. Cosmic mimicry is characterized by the fact that, at low redshi…
Did the Universe loiter at high redshifts ?
Varun Sahni, Yuri Shtanov
We show that loitering at high redshifts ($z \gsim 6$) can easily arise in braneworld models of dark energy which, in addition to being spatially flat, also accelerate at late time…